Grimmsnarl locations — where to catch

In Kitakami (Scarlet & Violet – The Teal Mask)

• Timeless Woods — Walk

Other games (2)

• Sword / Shield — The Isle of Armor (Gen 8): Frigid Sea, Frostpoint Field, Giant's Bed, Giant's Foot, Max Lair, Slippery Slope, Snowslide Slope
• Sword / Shield (Gen 8): Bridge Field, Dusty Bowl, Giant's Mirror, Hammerlocke Hills, Lake of Outrage, Rolling Fields, Stony Wilderness

Grimmsnarl — full Pokédex entry